A081245 Number of days in months in the Haab year of Mayan/Mesoamerican calendars.

20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 5, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 5, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 5

Offset: 1

Author

Ralf Stephan, Mar 12 2003

Keywords

• nonn

Links

• C. Tondering, The Calendar FAQ
• Index entries for sequences related to calendars

Crossrefs

Cf. A081244.

Formula

G.f. 20/(1-x)-15*x^19/(1-x^19).